The eSense Skin Response

The eSense Skin Response is a small sensor to measure your skin conductance using two electrodes and the microphone input of your Apple iPhone (3GS and higher), iPad (first generation and higher), iPad touch (fourth generation and higher) and Android Smartphones and Tablets (version 2,3 or higher).

By measuring skin conductance, the user can directly and precisely find out his or her level of relaxation or excitement. Skin conductance is influenced by the activity of perspiratory glands in the skin. Perspiratory glands are controlled by the sympathetic nervous system and react to emotional, physical and mental changes. Thoughts, feelings and movement (like deep breathing) can influence skin conductance. It is a direct reaction and even the smallest changes can be made apparent with this app.

Skin conductance training is the preferred kind of biofeedback training for combating fear and panic, and for learning relaxation techniques. Your skin conductance depends directly on your state of relaxation or stress, making it a commonly used and very precise stress indicator. This is because the small blood vessels (arterioles) crisscrossing the tissue are surrounded by smooth muscle fibers controlled by the sympathetic nervous system, which is also responsible for stress.
With the eSense Skin Response, you can precisely identify your stress level and reduce it with biofeedback training. The free app displays your skin conductance in multiple ways and includes detailed instructions for effective biofeedback training.

Because the eSense Skin Response effectively measures sweat gland activity, it can be used to reduce excessive sweating (hyperhidrosis) through biofeedback training. As Skin Response reacts directly to emotional arousal, it is also the standard for thedetection of deception.